DENTAL ANESTHESIA 4DD SEM1 PRACTICE
ASSESSMENT 2026 EXTENSIVE QUESTIONS
WITH ACCURATE SOLUTIONS GRADED A+
⩥ describe the depolarization of a nerve cell: Answer: when there is an
influx of Na+ ions and it causes the cell to become depolarized with a
(+) charge.
⩥ describe the repolarization of a nerve cell: Answer: begins
immediately after depolarization with potassium (+) ions leaving the cell
in order to restore equilibrium.
⩥ myelinated nerves conduct impulses _________ with ________
energy. Answer: faster; less
⩥ what do the nodes of ranvier on myelinated nerves allow for? Answer:
the passage of local anesthesia into the nerve cell.
⩥ what is the primary action of local anesthetics? Answer: to block pain
perception/transmission by decreasing permeability of sodium ions.
⩥ where does the biotransformation of esters occur? Answer: in the
pseudocholinesterase of blood plasma and is then excreted by the
kidneys.
, ⩥ where does the biotransformation of amides occur? Answer: in the
liver and is then excreted by the kidneys.
⩥ which local anesthetic type is less likely to admit an allergic reaction?
Answer: amides
⩥ ___________ are readily hydrolyzed in aqueous solutions, and
_____________ are resistant to hydrolysis in aqueous solutions. Answer:
esters; amides
⩥ what is the first sensation that is lost with local anesthetics? Answer:
pain
⩥ what is the function of sodium chloride in local anesthetics? Answer:
to maintain an isotonic solution
⩥ what happens when there is infection in the area of an injection?
Answer: because of its low pH, local anesthetic is less effective.
⩥ what is the most commonly used local anesthesia without a
vasoconstricter? Answer: carbocaine 3%
ASSESSMENT 2026 EXTENSIVE QUESTIONS
WITH ACCURATE SOLUTIONS GRADED A+
⩥ describe the depolarization of a nerve cell: Answer: when there is an
influx of Na+ ions and it causes the cell to become depolarized with a
(+) charge.
⩥ describe the repolarization of a nerve cell: Answer: begins
immediately after depolarization with potassium (+) ions leaving the cell
in order to restore equilibrium.
⩥ myelinated nerves conduct impulses _________ with ________
energy. Answer: faster; less
⩥ what do the nodes of ranvier on myelinated nerves allow for? Answer:
the passage of local anesthesia into the nerve cell.
⩥ what is the primary action of local anesthetics? Answer: to block pain
perception/transmission by decreasing permeability of sodium ions.
⩥ where does the biotransformation of esters occur? Answer: in the
pseudocholinesterase of blood plasma and is then excreted by the
kidneys.
, ⩥ where does the biotransformation of amides occur? Answer: in the
liver and is then excreted by the kidneys.
⩥ which local anesthetic type is less likely to admit an allergic reaction?
Answer: amides
⩥ ___________ are readily hydrolyzed in aqueous solutions, and
_____________ are resistant to hydrolysis in aqueous solutions. Answer:
esters; amides
⩥ what is the first sensation that is lost with local anesthetics? Answer:
pain
⩥ what is the function of sodium chloride in local anesthetics? Answer:
to maintain an isotonic solution
⩥ what happens when there is infection in the area of an injection?
Answer: because of its low pH, local anesthetic is less effective.
⩥ what is the most commonly used local anesthesia without a
vasoconstricter? Answer: carbocaine 3%
